The regions of the Far North are of great importance in the economic development of the Russian Federation. The harsh climatic conditions of the Arctic predetermine the requirements for residential buildings, in par-ticular to ensure the thermal insulation properties of the enclosing structures of prefabricated buildings for living workers working in shifts. In this paper the calculation of the normalized values of thermal resistance of the protecting designs is made, the design and structure of walls and overlappings of collapsible structures is developed. To ensure the required thermal resistance at a minimum thickness of structural elements, it is proposed to apply liquid thermal insulation on the inner surface of the walls.